Surveys

Underwater operations in progress in area bound by 19-51.48S 114-29.12E, 19-52.47S 114-29.66E, 19-49.25S…

Eastern Indian Ocean · Australia-northwest Coast · HYDROPAC 41/21

issued
2021-01-04 13:00Z
status
cancelled 2021-03-28 03:43Z (archive)
authority
AUSCOAST 1/21 041215Z JAN 21.
sea
Indian Ocean
position
-19.840, 114.543
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

EASTERN INDIAN OCEAN.
AUSTRALIA-NORTHWEST COAST.
DNC 04.
UNDERWATER OPERATIONS IN PROGRESS IN AREA BOUND BY
19-51.48S 114-29.12E, 19-52.47S 114-29.66E,
19-49.25S 114-36.08E, 19-48.30S 114-35.49E.

This area · survey operations

175 within 180 nm since 2000 · 9 in the last 12 months · 8 in force now

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05
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25
26

Season · when survey operations happen here

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M
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month of issue, all years in the archive

Timeline

Nearby now · within 120 nm

Worldwide now

86 survey operations in force · see all

Surveys

Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations

Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.